Pupil shapes vary widely across the animal kingdom, from the W-shaped pupils of cuttlefish to the bar-like pupils of goats.

Every critter on this planet that relies on a sexual means of reproduction has its own way of luring in a mate – but cuttlefish can do something really special. Male Andrea cuttlefish (Doratosepion ...

By being able to wait for better food, cuttlefish — the squishy sea creatures similar to octopuses and squids — showed self-control that's linked to the higher intelligence of primates. It was part of ...

A domestic cat’s eye narrows to a razor-thin vertical slit in bright sunlight, while a grazing sheep stares out through a ...

Some male cuttlefish seem to squirt out ink to enhance their courtship displays, offering the first evidence that cephalopod ink has uses beyond just fighting and defence against predators. Receive a ...

Crafty cuttlefish employ several different camouflaging displays while hunting their prey, according to a new paper published in the journal Ecology, including mimicking benign ocean objects like a ...

Here's yet another story about the amazing world of nonhuman animals, in this case cephalopods called cuttlefish. These fascinating animals are not really fish, but rather molluscs, and are members of ...

Cuttlefish are unlike anything else in the aquarium world. In this video, I introduce these incredible cephalopods to their new home and dive into what makes them so mind-blowing—camouflage, ...

A plume of ink can help hide a cuttlefish as it scuttles away from a predator. But that smoke screen’s stench may also warn sharks to stay away. Nicknamed “swimming noses,” some sharks can sniff their ...